For Hillary Clinton more than anyone else, Donald Trump's inauguration was a bitter pill to swallow and while she flashed her pearly whites with a dazzling smile for the cameras and the cheering crowds in the Capitol, there was a moment of darkness.

A sombre Hillary was seen accompanied by her husband, former President Bill Clinton with a thunderous scowl before facing the masses.

Having won the popular vote by nearly 2.9million, Hillary lost the electoral college to Trump and had to face him today as he was sworn in as the new United States President. Something that she is unlikely to ever do.

(Image: Rex)

(Image: AFP)

(Image: Getty)

The former Democratic nominee, plastered on a smile in the face of the stinging defeat while Russian hacking reports continue to emerge.

Tweeting before the inauguration ceremony, Hillary wrote: "I'm here today to honor our democracy and its enduring values. I will never stop believing in our country and its future."

Hillary smiled as she spoke to former first lady Rosalynn Carter, former President George W. Bush and former first lady Laura Bush (Image: Getty Images)

A very grave moment for Hillary before looking out on the US Capitol (Image: Getty)

(Image: Getty)

(Image: Getty)

Another blow to Hillary is that her go-to designer, Ralph Lauren, styled the new First Lady, Melania Trump .

Melania stepped out in a Ralph Lauren baby-blue jacket and matching dress on Friday, choosing one of America's most iconic designers for Inauguration Day ceremonies.

The former fashion model's custom-designed Ralph Lauren outfit, worn with long matching gloves and stiletto shoes, had a 1960s vibe and wowed fashionistas.

Womens Wear Daily said the outfit, with its mock turtle neck, triggered comparisons to the late U.S. first lady and style icon Jacqueline Kennedy.

Style-watchers agreed, posting archive photos of Kennedy in a similar blue outfit for her husband's inauguration in 1961, and giving Trump's outfit a large thumbs-up.

Melania teamed her ensemble with powder blue heels (Image: REUTERS)

Melania's look was compared to Jackie Kennedy's style (Image: AFP)

Melania Trump 's Inauguration Day outfit had been the cause of much speculation after Tom Ford, Marc Jacobs and other leading designers said publicly they would not dress the first lady for her big day because they opposed her husband, Donald Trump.